Carbon-holder.



No. 897,410. PATENTBD SEPT. 1, 1908. 0. A. ROSS.

CARBON HOLDER.

APPLICATION FILED JULY 30, 1906.

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osoAR A. ROSS, or c IoAeo, ILLINOIS.

cannon-Hoppers.

I Specification of Letters Patent.

Patented Sept. 1, mos.

Application filed. July 35, 1908. Serial No. 328,352.

To all whom it may concern: Be it known that l, ()soAn A. Boss, a citizen of the United States, residing; et L/hicegO,

.in the county of Cook and State of Illinois,.

have invented certain new and useful imrovements'in CerbomHolders, of'which the ollowing is 2. description.

My invention belongs to that class ofv devices known as carbon or electrode holders", and has for its object the production of a cheap, simple and more eflicient end setis trouble Witherc lamps is cause by careless-l:

and more factory holder.

This holder is particularly adapted to be used in arc lumps and similar constructions. It frequently happens that a. rest. deal of nose in trimming the lam that is the per son renewing thecerbons oils to force the carbon. orelectrode into its holder.

certain distance itfsllsthrough its clutch e construction commonly used in ere lamps,

end an arc is formed between the carbon and clutch and carbon holder usually destroying In my .1111' rovcdiorm of holder the some. the carbon must first 3e secured within the holder before current will be conducted to the carbon and it is obvious that when the holder comes to rest at the lowestoint of its travel the carbon being securely eld in the holder, the circuit Will be broken eta point between the upper end lower carbons.

To this end my invention consists of the novel'errengement, construction and combi-' nation of parts herein. shown and described particularly pointed out in the claims.

In the drswings wherein. like reference characters indicate like or corresponding parts: Figure 1 is e perspective view oi my preferred form of holderyedepted to used with parallel guide rods. Fig. 2- is' at side view of the some the parts 4 and 5 removed. Fig. 3 1S e-longrtudinsl sectional view show ing the parts 4 and 5 in position. Fig. 4 is a. cross-sectional view taken on line 4-4 of Fig. Fig. is :i perspective view of part 4. Fig. 6 is e perspective View of part 5. Fig; 7 is c perspective view of the holder modified so as to permit it to travel. in. a tubular guide,

and Fig. 8 is it'longitudincl sectional view ofthe form shown in Fig. 1, ecerbon pencil, in-

serted, the holder being s I hown, in at position as normally used. I

pencil 2.

Then after theupper carbon hes fed downward a adapted to receive the electrode or carbon This depression is preferably not made truly cylindrical, that is, the center of the curve in each piece 1 and l ise. little outside the line of contact of the two parts, so that when a pencil 2 is inserted it wil slightly spread the two parts 1 end 1 as is shown in Fig. 8 thereby gripping-the same. It isob- 'vious that the socket member '1, l may be made in any preferred or desiredshepe or I form, the 'iigures showing two styles, one grooved as at 11 in'Fig. 4 adapted to be used with two parallelv guide rods, the other form, Fig. 7, edepted to be used in a tubular guide. Grooves 8 and 9 of dillorent depths are prefelse the opening 10 into the chamber or (167 pression 3 shown.

A resilient conducting contact member 4 is provided, which in the preferred form of holder shown, embraces the socket member and extends through the opening 10 into the chamber- 3. To hold the parts of the socket members together I preferably provide a. sec

ond resilient member 5, which lies in the grooved portion 9v and also embraces the socket member. 'Referring to Figs. 3, 6 end 8 it. -will be noticed that the free ends of the member 5 are preferably bent inwardly to drop into a slight depression in the-groove 9,

thus more'lirmly holding the mernber'b in .erably provided in the socket member, and

position. To the member 5 l: preferably attech my electrical conductor in any suitable point 6 being showi'i. If now an electrode or the two parts 1 and 1 which are'resiliently held together by the member 5 and the carbon will be held securely in. piece. Until the carbon is pushed in. sufficiently to give the socket'member a firm hold there will be no circuit formed through the contact member 4- end the carbon, hence the person trimming the lamp must push the carbon in to a, point where it will be securely held in order .95 manner, the conducting cable 7 attached at -e. cerbonpencil? is inserted into the depres- B191! 3 .ol' the socket member,.1t will spread the carbon is securely held by the parts 1 and,

1, contact being formed between; the carbon End the resilient; conducting'contact memer 4.

The conducting cable may be attached to the part 5 in any preferred or suitable wa or to 4 if desired, or the parts 4 and 5 may e secured together if so preferred. in any suitable manner. It is obvious that if the con.- tact member 4 is secured to member 5, if preferred it could be arranged to contact with the carbon pencil on only one side. As is shown in Fig. 8 the part 6 may be bent back as shown. It is obvious that if the contact member 4 is arranged to contact on the side -with the member when an electrode is in position as. shown in Fig. 8, there will be more pressure exerted on the carbon, and the contact perhaps improved.

Having thus described my improvement it is obvious that various immaterial modifications may be made in. my device without departing from the spirit of my invention, hence I do not wish to be understood as limiting myself to the exact form andconstructlon shown.

Having thus described my invention,-

what I claimas new, and desire to secure by lietters Patent is 1- 1. .An electrode holder of the kind described, comprising a resilient socket member of insulating material adapted to receive and resiliently retain an electrode placed ranged to operatively contact. therein. with 011 the side said electrode inserted therein thereof. v

2. An electrode holder of the kind described comprising a resilient socket memher of insulating material adapted to receive and resiliently retain anelcctrode placed therein, in combination with a resilient contact member positioned within the socket and arranged to operatively contact within the socket with an electrode maintained therein.

3. 111 an electrodc holder. for arc lamps, a socket member ctnnprisirig a plurality of parts, and meansv lor rcsi lently retaining said parts in operative position to receive and retain a cooperating electrode member placed therein, in combination with meleetrical contact member positioned within the socket and arranged to operatively contact therein with p a cooperating part forced therein on the side'thereof.

4. In an. electrode holder for are lights and the like, a socket .mcmber comprising two parts of insulating material and a clampin spring arranged to resiliently retain sci parts in operative position to receive and retain a cooperating member placed therein, in combination with an electrical contact member contained within the socket and arranged to operatively contact with a cooperating part forced therein.

5. In an electrode'holder for are lights and the like, a socket member comprising a plurality of parts and a U-sha ed clamping member arranged to resilient y, retain the parts inoperative position to receive and rctain a cobperating member placed therein, in combination with an electrical contact membercoi'itained'v within the socket and arranged to operatively contact with a cooperating part forced therein.

6. In an electrode holder and the like, a socket member comprising mating parts of insulating material resiliently secured together to form a yielding socket member adapted to receive ,a cooperating part placed therein incombinatron with an electrical contact member contained within the-socket and arranged to co'operating for are lights shaped contact member positioned with its free ends extended within the socket and arranged to operatively contact with an electrode positioned within said socket.

8. A device of the kind'described, a socket member comprising mating parts of insulat- (i i mg material resiliently secured together to form a yielding socket member, a U-shaped clamping member adapted to embrace and resilient y secure the matin parts together,

in combination with an e ectrical contact arranged to operative} contact ithin the taining said parts in operative position to I In testimony whereof, I have hereunto receive an retain an electrode placed there signed my name in the presence of two subin, in combination with a resilient electrical scribing witnesses.-

contact member positioned within said 4 ()SCAR A. ROSS.-

socket remote from the open end thereof and Witnesses:

ROY W. HILL,

CHARLES 1. C033.

socket with the electxo e forced therein. 

